Results 231 to 240 of about 62,058 (288)
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The Phenylephrine Test Revisited.
Ophthalmic Plastic & Reconstructive Surgery, 2017PURPOSE To characterize the phenylephrine test in ptotic patients to help clinicians perform the test more efficiently. METHODS Adults with involutional ptosis (n = 24, 30 eyes) were assessed with digital photographs for response to topical 2.5 ...
A. Barsegian, Adam Botwinick, H. Reddy
semanticscholar +4 more sources
Anesthesiology, 2023
Background: The treatment of intraoperative hypotension with phenylephrine may impair cerebral perfusion through vasoconstriction, which has been linked to postoperative delirium.
Haobo Ma +11 more
semanticscholar +1 more source
Background: The treatment of intraoperative hypotension with phenylephrine may impair cerebral perfusion through vasoconstriction, which has been linked to postoperative delirium.
Haobo Ma +11 more
semanticscholar +1 more source
European Journal of Anaesthesiology, 2021
BACKGROUND Studies comparing phenylephrine and norepinephrine for the treatment of postspinal hypotension in pre-eclamptic patients are limited. OBJECTIVE To compare bolus doses of phenylephrine and norepinephrine for treating hypotension in pre ...
M. Mohta +4 more
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BACKGROUND Studies comparing phenylephrine and norepinephrine for the treatment of postspinal hypotension in pre-eclamptic patients are limited. OBJECTIVE To compare bolus doses of phenylephrine and norepinephrine for treating hypotension in pre ...
M. Mohta +4 more
semanticscholar +1 more source
Ocular absorption and disposition of phenylephrine and phenylephrine oxazolidine
Biopharmaceutics & Drug Disposition, 1988AbstractThe ocular bioavailability of phenylephrine oxazolidine (PO), a prodrug intended for rapid corneal penetration, was micronized and suspended in sesame oil (1 and 10 per cent) and compared in bioavailability to phenylephrine HCl (PE) dissolved (10 per cent) in a buffered (pH 5.75), viscous (30 centipoise) vehicle. Cornea and aqueous humor of New
Ronald D. Schoenwald, D. S. Chien
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Effect of Phenylephrine on Accommodation
Optometry and Vision Science, 1986We studied the effect of the topical instillation of phenylephrine hydrochloride on accommodation. Factors considered were iris color and the influence of the prior application of a topical anesthetic. There has been controversy concerning the role of the sympathetic nervous system in accommodation.
William M. Lyle +2 more
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Potentiometric sensor for phenylephrine based on phenylephrine-tetraphenylborate lipophilic salt [PDF]
Mikrochimica Acta, 1989 Phenylephrine (PE) ion-selective electrode based on incorporation of phenylephrine-tetraphenylborate lipophilic salt in plasticized PVC matrices is constructed. The electrode shows near Nernstian response over the concentration range 1.5 × 10−4-10−1 M in solutions of pH 2.9–8.0 at 25°C.
Yousry M. Issa +3 more
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Is Phenylephrine Pivalate a Prodrug?
Archives of Ophthalmology, 1980Phenylephrine pivalate has been assumed to be a prodrug devoid of important intrinsic activity because of its structural similarity to dipivefrin (dipivaly epinephrine). However, unlike dipivefrin, the pharmacologic activity of phenylephrine pivalate was not prevented by prior administration of echothiophate iodide.
S. T. Shaikewitz +2 more
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Phenylephrine Eyedrops and Anesthesia
Anesthesiology, 19862 cas chez lesquels des gouttes de neosynephrine conduisent a des modifications hemodynamiques, et ECG chez des malades ...
Charles B. Hantler +1 more
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Archives of Otolaryngology - Head and Neck Surgery, 1996
This letter is in response to a case reported in theArchivesby Ashchi et al 1 titled, "Cardiac Complication From Use of Cocaine and Phenylephrine in Nasal Septoplasty." They describe a previously healthy young woman who had an acute myocardial infarction after receiving topical cocaine and phenylephrine during nasal septoplasty.
Susan H. Noorily, Allen D. Noorily
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This letter is in response to a case reported in theArchivesby Ashchi et al 1 titled, "Cardiac Complication From Use of Cocaine and Phenylephrine in Nasal Septoplasty." They describe a previously healthy young woman who had an acute myocardial infarction after receiving topical cocaine and phenylephrine during nasal septoplasty.
Susan H. Noorily, Allen D. Noorily
openaire +2 more sources
Anesthesiology, 2017
Background:Norepinephrine has been investigated as a potential alterative to phenylephrine for maintaining blood pressure during spinal anesthesia for cesarean delivery with the advantage of less depression of maternal heart rate and cardiac output ...
W. N. Kee
semanticscholar +2 more sources
Background:Norepinephrine has been investigated as a potential alterative to phenylephrine for maintaining blood pressure during spinal anesthesia for cesarean delivery with the advantage of less depression of maternal heart rate and cardiac output ...
W. N. Kee
semanticscholar +2 more sources